Velocity Problem: John & Derek Meet - Solved in 2 hrs

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SUMMARY

The velocity problem involving John and Derek was solved by establishing their respective distances as functions of time. John travels at a speed of 18 km/hr, starting two hours before Derek, who travels at 72 km/hr. By setting the distance equations equal to each other and solving for time, the meeting point was calculated. The key formula used was V = x/t, allowing for the determination of the distance each traveled before meeting.

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Homework Statement


John is on a bike starts his trip at a speed of v=18km/hr and two hours later Derek is on a motorcycle follows at a speed of 72km/hr. How far away from the start point they will meet? How is this problem solved?

Homework Equations

The Attempt at a Solution

 
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Express d(t) for each moving object.

Set them equal.

Solve for t.

Compute d(t) at that time.
 
V=x/t.So use this formula to reach "How many meter john travel in 2 hours"
Lets call it ##x_1##.Now the time pass same both of them.
##x_1##+VJohntJohn=VDerektDerek
Use this equation to find solution.
 

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